JPS6334333Y2 - - Google Patents
Info
- Publication number
- JPS6334333Y2 JPS6334333Y2 JP19206082U JP19206082U JPS6334333Y2 JP S6334333 Y2 JPS6334333 Y2 JP S6334333Y2 JP 19206082 U JP19206082 U JP 19206082U JP 19206082 U JP19206082 U JP 19206082U JP S6334333 Y2 JPS6334333 Y2 JP S6334333Y2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- helical
- wires
- wire
- electromagnetic field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 37
- 230000005672 electromagnetic field Effects 0.000 claims description 14
- 239000003989 dielectric material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Waveguide Aerials (AREA)
Description
【考案の詳細な説明】
本考案はらせん状の導体線又は絶縁電線を複数
有し、該導体線又は絶縁電線を流れる電流によつ
て形成される電磁界の一部又は全てが、所望の周
波数又は周波数帯において放射電磁界となるよう
にらせんのピツチを選んだらせん導体型漏洩ケー
ブルの改良に関するものである。[Detailed description of the invention] The present invention has a plurality of spiral conductor wires or insulated wires, and part or all of the electromagnetic field formed by the current flowing through the conductor wires or insulated wires has a desired frequency. The present invention also relates to an improvement of a helical conductor type leaky cable in which the pitch of the helix is selected so as to produce a radiated electromagnetic field in a frequency band.
らせん導体型漏洩ケーブルとしては、複数の絶
縁電線を一定のピツチで撚り合わせたものが一部
で使用されている。かかる構造のケーブルでは、
所望の周波数又は周波数帯において導体を流れる
電流による電磁界の一部又は全てが放射電磁界と
なるように絶縁電線を撚り合わせるピツチを選ん
だ場合、周波数によつては、通常の通信ケーブル
において絶縁電線を対又はカツドに撚り合わせる
ピツチ（約50〜150mm）に比較してかなり長く１
ｍ以上にもなる為、絶縁電線を撚り合わせるらせ
ん角が極めて小さくなり、撚り合わせるピツチを
正確にコントロールすることが難しくなる。ま
た、撚り合わせた後でも、ケーブルを曲げ伸ばし
することにより、撚り合わせのらせん角が極めて
小さいために絶縁電線相互の位置がずれてピツチ
が変化し一定でなくなる。 Some spiral conductor type leaky cables are made by twisting multiple insulated wires together at a certain pitch. In a cable with such a structure,
If a pitch is selected for twisting insulated wires so that part or all of the electromagnetic field due to the current flowing through the conductor at the desired frequency or frequency band becomes a radiated electromagnetic field, depending on the frequency, insulation may be It is quite long compared to the pitch (approximately 50 to 150 mm) where wires are twisted into pairs or corners.
m or more, the helical angle at which the insulated wires are twisted becomes extremely small, making it difficult to accurately control the twisting pitch. Further, even after twisting, when the cable is bent and stretched, the helical angle of the twist is extremely small, so the positions of the insulated wires shift relative to each other, and the pitch changes and becomes inconsistent.
かかる撚り合わせピツチの変化、不均一によ
り、導体を流れる電流により形成される電磁界の
一部又は全てが放射電磁界となる周波数又は周波
数帯が、所望の周波数又は周波数帯からずれた
り、不均一な放射電磁界となつたりする。本考案
は、かかる欠点が発生しにくい、らせん導体型漏
洩ケーブルを提供するものである。 Due to such changes in the twisting pitch and non-uniformity, the frequency or frequency band in which part or all of the electromagnetic field formed by the current flowing through the conductor becomes the radiated electromagnetic field deviates from the desired frequency or frequency band, or becomes uneven. It becomes a radiated electromagnetic field. The present invention provides a helical conductor type leaky cable that is less prone to such defects.
即ち、本考案のらせん導体型漏洩ケーブルは、
らせん状の導体線又は絶縁電線を複数有し、該導
体線又は絶縁電線を流れる電流によつて形成され
る電磁界の一部又は全てが所望の周波数又は周波
数帯において放射電磁界となるようにらせんのピ
ツチを選んだらせん導体型漏洩ケーブルにおい
て、導体線又は絶縁電線を円柱状の誘電体の外周
に設けたらせん状の溝に挿入して構成するので導
体線又は絶縁電線のらせん形状を該溝の形状によ
つて与えることが出き、その結果ケーブル製造中
及び製造後の導体線又は絶縁電線のらせんのピツ
チ変動を防止することが出き良好な放射特性及び
放射特性の安定性が確保できる。 That is, the spiral conductor type leaky cable of the present invention is
It has a plurality of spiral conductor wires or insulated wires so that part or all of the electromagnetic field formed by the current flowing through the conductor wires or insulated wires becomes a radiated electromagnetic field at a desired frequency or frequency band. A leaky conductor cable with a selected helical pitch is constructed by inserting a conductor wire or insulated wire into a spiral groove provided on the outer periphery of a cylindrical dielectric, so the helical shape of the conductor wire or insulated wire can be adjusted. As a result, it is possible to prevent variations in the helix pitch of the conductor wire or insulated wire during and after cable manufacturing, ensuring good radiation characteristics and stability of radiation characteristics. can.
また、絶縁電線を撚り合わせた構造のらせん導
体型漏洩ケーブルにおいてはケーブルの外径を小
さくするに従い、絶縁電線を撚り合わせるらせん
角が小さくなるため一定のピツチで撚り合わせる
ことが難しくなり、細径のケーブルが製造しにく
い欠点があつたが、本考案のらせん導体型漏洩ケ
ーブルでは、誘電体の溝のらせんのピツチを一定
にコントロールすればよく、１例としてプラスチ
ツクを押出成形して得られる誘電体を使用する等
の方法によりらせんのピツチのコントロールが容
易に出きることから、細径のケーブルも製造しや
すいという利点がある。 In addition, in a spiral conductor type leaky cable that has a structure in which insulated wires are twisted together, as the outer diameter of the cable is reduced, the helical angle at which the insulated wires are twisted becomes smaller, making it difficult to twist them at a constant pitch. However, in the spiral conductor type leaky cable of the present invention, it is only necessary to control the helical pitch of the dielectric groove to a constant level. Since the pitch of the helix can be easily controlled by using a method such as using a body, it has the advantage that it is easy to manufacture small diameter cables.
本考案にて使用するらせん状の溝を有する誘電
体は、らせん状の溝の形状が導体線又は絶縁電線
のらせん形状を決める為、曲げ伸ばしによる変形
の小さい材質のものが好ましい。また、本考案に
て使用する誘電体はケーブルの伝送損失を小さく
する為に、できるだけ誘電率の小さいものが好ま
しく、溝の数をふやしたり中心部その他に中空を
設けたり発泡材料を使用することにより全体の誘
電率を小さくすることもできる。 The dielectric material having a spiral groove used in the present invention is preferably made of a material that is less deformed by bending and stretching, since the shape of the spiral groove determines the spiral shape of the conductor wire or insulated wire. In addition, in order to reduce the transmission loss of the cable, the dielectric used in this invention is preferably one with as low a dielectric constant as possible, and it is recommended to increase the number of grooves, provide a hollow in the center or other areas, or use a foam material. The overall dielectric constant can also be reduced by this.
また、本考案にて使用するらせん状の溝を有す
る誘電体は、ケーブルの引張強さを高める為に中
心部に抗張力線を挿入することも出きる。更に、
本考案のケーブルにおいては、誘電体の有するら
せん状の溝と導体線又は絶縁電線とのすきまに樹
脂などを充填して誘電体と導体線又は絶縁電線と
を接着固定してもよい。 Furthermore, the dielectric material having a spiral groove used in the present invention can also have a tensile strength wire inserted in its center to increase the tensile strength of the cable. Furthermore,
In the cable of the present invention, the gap between the spiral groove of the dielectric and the conductor wire or insulated wire may be filled with resin or the like, and the dielectric and the conductor wire or insulated wire may be adhesively fixed.
また、本考案のらせん導体型漏洩ケーブルに
は、種々の環境で使用できるように、外側に適当
な非金属性の糸やテープを巻いたり非金属性の外
被を設けることもできる。 Further, the spiral conductor type leaky cable of the present invention can be wrapped with a suitable non-metallic thread or tape on the outside, or provided with a non-metallic jacket so that it can be used in various environments.
第１図に本考案のらせん導体型漏洩ケーブルの
１例を示す。 FIG. 1 shows an example of the spiral conductor type leaky cable of the present invention.
導体線１を誘電体２の有する所望のピツチを持
つたらせん状の溝に挿入することにより本考案の
らせん導体型漏洩ケーブルを得ることが出きる。
また、らせん溝のピツチは導体を流れる電流によ
つて形成される電磁界の一部又は全が放射電磁界
となるよう選ばれるが、例を示すと150MHz帯で
はピツチを1.2ｍ、120MHzではピツチを16.5ｍに
することにより目的が達せられる。 By inserting the conductor wire 1 into a helical groove having a desired pitch in the dielectric 2, the helical conductor type leaky cable of the present invention can be obtained.
In addition, the pitch of the spiral groove is selected so that part or all of the electromagnetic field formed by the current flowing through the conductor becomes a radiated electromagnetic field. The objective can be achieved by making the distance 16.5m.
また第２図に本考案のらせん導体型漏洩ケーブ
ルの別の実施例を示す。導体線１の周囲に絶縁体
１′を施した絶縁電線を誘電体２の有する所望の
ピツチを持つたらせん状の溝に挿入することによ
り、本考案のらせん導体型漏洩ケーブルを得るこ
とが出きる。この場合には、誘電体２は、絶縁電
線を挿入しない溝５、中空６及び中心部に抗張力
線７を有しており、誘電体２の外側には非金属性
テープ３が巻いてあり、さらにその外側に非金属
性外被４を有する。 Further, FIG. 2 shows another embodiment of the spiral conductor type leaky cable of the present invention. The helical conductor type leaky cable of the present invention can be obtained by inserting an insulated wire with an insulator 1' around the conductor wire 1 into a helical groove having a desired pitch in the dielectric 2. Wear. In this case, the dielectric 2 has a groove 5 into which no insulated wire is inserted, a hollow 6, and a tensile strength wire 7 in the center, and a nonmetallic tape 3 is wrapped around the outside of the dielectric 2. Further, a non-metallic jacket 4 is provided on the outside thereof.
なお第１図又は第３図の例では導体又は絶縁電
線の数を２本としたものを示したが、導体又は絶
縁電線の数を複数本とし、それらを２群に分けた
り各導体に給電する電力の位相差を適当にもうけ
ることにより同じ目的の放射電磁界を得ることも
できる。 In addition, although the example in Figure 1 or Figure 3 shows an example in which the number of conductors or insulated wires is two, it is possible to use multiple conductors or insulated wires, divide them into two groups, or feed power to each conductor. It is also possible to obtain a radiated electromagnetic field for the same purpose by appropriately creating a phase difference between the powers.
第１図は本考案のらせん導体型漏洩ケーブルの
１例を示した図であり、第２図は本考案のらせん
導体型漏洩ケーブルの別の１例を示した図であ
る。
１……導体線、１′……絶縁体、２……誘電体、
３……非金属性テープ、４……非金属性外被、５
……溝、６……中空部、７……抗張力線。
FIG. 1 is a diagram showing one example of the helical conductor type leaky cable of the present invention, and FIG. 2 is a diagram showing another example of the helical conductor type leaky cable of the present invention. 1...Conductor wire, 1'...Insulator, 2...Dielectric material,
3... Non-metallic tape, 4... Non-metallic jacket, 5
...Groove, 6...Hollow part, 7...Tensile strength line.
Claims (1)
導体線又は絶縁電線を流れる電流によつて形成さ
れる電磁界の一部又は全てが所望の周波数又は周
波数帯において放射電磁界となるように、らせん
のピツチを選んだらせん導体型漏洩ケーブルにお
いて、導体線又は絶縁電線が、円柱状の誘電体の
外周に設けたらせん状の溝に挿入されて成ること
を特徴とするらせん導体型漏洩ケーブル。 It has a plurality of spiral conductor wires or insulated wires so that part or all of the electromagnetic field formed by the current flowing through the conductor wires or insulated wires becomes a radiated electromagnetic field at a desired frequency or frequency band. , a helical conductor type leaky cable with a selected helical pitch, characterized in that a conductor wire or an insulated wire is inserted into a helical groove provided on the outer periphery of a cylindrical dielectric material. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19206082U JPS5996904U (en) | 1982-12-17 | 1982-12-17 | Spiral conductor type leakage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19206082U JPS5996904U (en) | 1982-12-17 | 1982-12-17 | Spiral conductor type leakage cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5996904U JPS5996904U (en) | 1984-06-30 |
| JPS6334333Y2 true JPS6334333Y2 (en) | 1988-09-12 |
Family
ID=30413427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19206082U Granted JPS5996904U (en) | 1982-12-17 | 1982-12-17 | Spiral conductor type leakage cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5996904U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006352664A (en) * | 2005-06-17 | 2006-12-28 | Mitsubishi Electric Corp | Signal coupling unit |
-
1982
- 1982-12-17 JP JP19206082U patent/JPS5996904U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5996904U (en) | 1984-06-30 |
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